Mrs. Pteranodon takes Buddy and Tiny to visit a Mikey Microraptor, one of the smallest of dinosaurs ever. Tiny is annoyed that Mikey is even smaller than she is, but Mikey looks up to Tiny as a role model. Buddy and Tiny go to visit their friend Annie Tyrannosaurus and discover she isn't home, so they follow clues and find her on a migration with her family.